Can this talk to other GMRS radios?
Yes, with compatible GMRS channel settings. FRS interoperability is limited to shared channels; the supplier specifies a GMRS license.
Is Tundra included in the confirmed application list?
No. Although Tundra appears in supplier prose, it is absent from the detailed fitment list used here.
Which Lexus model is listed?
The detailed source list identifies Lexus GX470 for 2003-2009; no broader Lexus application is inferred.
What connections or fitment does this require?
The source prose also mentions Tundra, but it is absent from the detailed fitment list; no Tundra application is claimed here.
What is supplied with this listing?
Selected GMR25, G4, or G1 GMRS radio; Band-matched antenna; 13-foot antenna cable with NMO mount; Vehicle-specific driver-side antenna mount; Vehicle-specific radio mount.